Running short of CHA_FAN/ (ASUS Z370)

[flightoftherat]

Hello,

My MB has only 5 fan headers:

@CPU_FAN
@CHA_FAN1
@CHA_FAN2
@CPU_OPT
@W_PUMP+

I've connected the rear exhaust fan to the CHA_FAN1. It has 3 pins so as far as I know it will always running at full speed (unless I control it in the bios or by a software)

I have a Thermaltake water-cooling for the CPU with 2 fans rad so I guess it'll use the W_PUMP+ and the CPU_FAN & CPU_OPT (I want to ensure that i'll use both anyway).

Now, I have 1 CHA_FAN left (#2) but I have 3 remaining fans to install!! The 3 fans are located at the bottom of the case.

Is there any hub solution to connect the 3 fans (12v) into the CHA_FAN2? Any solution? Never thought I could have problems with the fans.

Maybe the watercooler uses only either the cpu_opt or the cpu_fan, leaving 1 available for the chasis fans. Is it recommendable to connect one of those into the cpu_fan or the cpu_opt?

 

[Dark Lord of Tech]

https://www.amazon.com/SilverStone-System-Cables-Black-CPF04/dp/B00VNW556I
SATA Powered Fan Hub.

 

[flightoftherat]

Such speed!!

So, all that Hub thing can be plugged into the cha_fan? won't it run out of power?

 

[lumineZ]

Read what SR-71 Blackbird wrote

SATA Powered Fan Hub.

Ergo you are powering the fan hub with a SATA power cable from your PSU.

 

[flightoftherat]

Wonderful! The MB provides this sata cable

https://www.conrad.com/medias/global/ce/2000_2999/2100/2180/2186/713256_BB_00_FB.EPS_1000.jpg

I have 1 connected to the HDD, 1 to the case led and the 3rd will be connected to the hub. Would this be alright?

 

[lumineZ]

Correct.

 

[flightoftherat]

Thank you!

And this is the last one I swear: This product is from a local store (I can buy it faster)

https://www.pcfactory.cl/producto/26791-hub-ventiladores

Does it work the same as the hub previously posted by SR-71? It's not SATA powered so I dunno.

 

[flightoftherat]

Sorry forget that, I found it on Amazon.

Which one should I pick up?

https://www.amazon.com/DeepCool-FAN-HUB-Cooler-Powers/dp/B008YD7B0M/ref=pd_sbs_147_2?_encoding=UTF8&pd_rd_i=B008YD7B0M&pd_rd_r=P0AE0C4ZWQPNAWTK3DMG&pd_rd_w=M8oiq&pd_rd_wg=krcyU&psc=1&refRID=P0AE0C4ZWQPNAWTK3DMG

 

[oriol.delavega]

Nope. That one would draw all current from the motherboard, so, depending on the fans and mb, you could be perfectly safe, or you could make your board catch fire... Try to search the manual for info on how much current does the CHA_FAN connector supply, then search for the consumption of your very specific fans and decide accordingly.

 

[lumineZ]

That is just a simple 1 - 4 fan splitter and not a fan hub.
And splitters draw power from the motherboard as already stated.

You need an fan hub that draw power by either SATA or MOLEX.

or

Get a fan controller like this one (just an example) : https://www.quietpc.com/zm-mfc1-combo

 

[flightoftherat]

Alrighty, everything seems clearer now.

I'm getting the Hub from Amazon then.

Thank you!